X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fclear.c;fp=src%2Fbin%2Flttng-sessiond%2Fclear.c;h=a0917dca8186c57a9b0ffcbdc2e49b324de65935;hp=0000000000000000000000000000000000000000;hb=f3e3b7222f889a4e9f8936fc5ad3577400e4318d;hpb=dc722af3d0305807fca29ad00d694cbd5967497a

diff --git a/src/bin/lttng-sessiond/clear.c b/src/bin/lttng-sessiond/clear.c
new file mode 100644
index 000000000..a0917dca8
--- /dev/null
+++ b/src/bin/lttng-sessiond/clear.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2019 - Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#define _LGPL_SOURCE
+#include <assert.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <common/defaults.h>
+#include <common/error.h>
+#include <common/utils.h>
+
+#include "clear.h"
+#include "session.h"
+#include "ust-app.h"
+#include "kernel.h"
+
+
+int cmd_clear_session(struct ltt_session *session)
+{
+	int ret;
+
+	if (!session->has_been_started) {
+		 /* Nothing to be cleared, do not warn */
+		 ret = LTTNG_OK;
+		 goto end;
+	}
+
+	/*
+	 * Unsupported feature in lttng-relayd before 2.12.
+	 */
+	if (session->consumer->type == CONSUMER_DST_NET &&
+			(session->consumer->relay_major_version == 2 &&
+			session->consumer->relay_minor_version < 12)) {
+		ret = LTTNG_ERR_CLEAR_NOT_AVAILABLE_RELAY;
+		goto end;
+	}
+
+	/* TODO: Should we check for disallowed here or consumer side? */
+
+	/* Snapshot session are the only one supported for now */
+	if (!session->snapshot_mode) {
+		/*
+		 * TODO: this error code is temporary and will be removed since
+		 * we will be supporting all session type
+		 */
+		ret = LTTNG_ERR_CLEAR_NOT_AVAILABLE;
+		goto end;
+	}
+
+	if (session->kernel_session) {
+		ret = kernel_clear_session(session);
+		if (ret != LTTNG_OK) {
+			goto error;
+		}
+	}
+	if (session->ust_session) {
+		ret = ust_app_clear_session(session);
+		if (ret != LTTNG_OK) {
+			goto error;
+		}
+	}
+error:
+end:
+	return ret;
+}